SAP Basis Administrator responsibility is to approve the basket and download the objects in Download Manager. For easiness and without creating any Maintenance Transaction in solution_manager, you can do the same via SE37.
Logon to Solman and run SE37.
Then —- /TMWFLOW/MO_UI_BASKET_AUTHORIZ
Insert the value I_OSS_RFC = SAP-OSS
Then Click on Execute Button
Here we can see T_APPROVED_OBJECTS is one  which we were approved.
Run SAP Download Manager –> Download the selected and approved packages.